CONTENTS. 



PAGE. 



CHAPTER I. Introductory circulating slides 

 the little special apparatus needed the use 

 of an eyepiece first attempts 9 



CHAPTER II. Photo-micrography without a mi- 

 croscope apparatus for the work the illu- 

 minant making the exposure objects 

 suitable for work of this character ... ... 16 



CHAPTER III. The micro-scope its essentials 

 a simple baseboard the focussing glass 

 the bull's eye condenser and lamp mag- 

 nesium ribbon 22 



CHAPTER IV. Illumination advantages of arti- 

 ficial light >a simple object with a low 

 power diatoms working with polarised 

 light opaque objects dark ground effect 29 



CHAPTER V. Focussing screens trying effects 

 oil immersion lenses test objects 

 measuring the amplification with any ex- 

 tension of camera the polariscope colour 

 screens 34 



